Demonstrations By Appointment
Call Us Today: 01483 537577

Filters

search

SME Model 20/12 Turntable (Excluding Pick Up Arm)

model2012
A larger and more massive version of our well known Model 20/2. It will accept nine, ten and twelve-inch arms but is especially directed at the exciting Model 312S. This offers a performance some 27% better than a nine-inch arm in respect of angular error distortion. The wand and headshell are press ...Read more

A larger and more massive version of our well known Model 20/2. It will accept nine, ten and twelve-inch arms but is especially directed at the exciting Model 312S. This offers a performance some 27% better than a nine-inch arm in respect of angular error distortion. The wand and headshell are pressure die-cast in magnesium and are 27g lighter than they would be in aluminium.

Manufacturer Site Link: SME Model 20/12

Brand: SMESME £ 15,020.40 each


  • Description
  • Specifications
  • Video
  • Downloads
  • Reviews

Probably the stiffest and lightest twelve-inch arms ever made these dual problems are at last addressed and on listening, the benefits of minimal tracking error and harmonic distortion are clearly revealed. A turntable should address the problems of extraneous vibrations. These emanate from numerous sources including air and structural vibration from loudspeakers, groove modulation, stray electrical fields and mechanical imperfections in moving parts.

In the Model 20/12, superb instrument quality machining is allied with fundamental physics. The higher the mass and stiffness of a body the less it will flex and vibrate; the duration of a vibration can be shortened by suitable damping.

Model 20/12 weighs approximately 33.5Kg (73.7lb), significant in relation to its size because it is density that matters. For example, the same weight of metal spread over a large enough area would be aluminium foil! The sub-chassis measures only 20 1/2” (520mm) by 14 3/4” (375mm) but weighs 8.0Kg (17.6lb). Its thickness, 5/8” (16mm) resists flexing at low frequencies whilst high frequency resonance is attenuated by efficient extensional damping.

  • Dimensions: 520 x 375 x 173.5mm.
  • Packing: Substantial case.
  • Net weight with power supply: 35.5kg (78lb)
  • Shipping weight approximately: 45.5kg (100lb)
  • Stable four point suspension.
  • Sub-chasis suspended on eighty strands of rubber in the form of forty purpose moulded ‘O’-rings.
  • Trimming screws for suspension adjustment.
  • Central fluid damper controls sub-chassis motion and offers resistive ground-path for acoustic signals.
  • For transport lock down screws secure the sub-chassis and seal the damper.
  • 19mm diameter main spindle machined from high-chrome steel hardened, ground and super finished. Runs in a sealed oil bath.
  • Reflex clamping system minimises record resonance.
  • 6.5Kg (14.3lb) machined platter with unique Isodamp face.
  • Generous use of extensional damping and resistive loop construction ensure sonic neutrality.
  • Adjustable ball feet with optional compliant inserts.
  • Four jacking screws built into the sub-platter allow the thrust bearing to be off loaded for transit.
  • Driven by a 3-phase, 6 pulse, inductance motor, with 8 pole Neodymium magnets and 3 integrated Hall position sensors.
  • The power supply houses an electronic controller using a high performance microcomputer, optimised for motor control. Closed loop speed control is implemented using a pseudo sine wave commutation sequence and a proportional-plus-integral (PI) algorithm.
  • New design incorporates a 4 layer surface mount technology pcb with on-board user adjustable speed variation control.
  • Large diameter strobe disc supplied allows precise adjustment of standard speeds.
  • Speeds ranges: 33.3, 45 and 78 rpm.